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Table 1 Basic characteristics of the study groups

From: The effect of L-theanine supplementation on the immune system of athletes exposed to strenuous physical exercise

Parameters Supplemented group (n = 10) Placebo group (n = 10)
Age (years) 21.0 ± 0.91 20.5 ± 1.08
Body weight (kg) 88.9 ± 7.02 85.7 ± 10.40
Body height (cm) 191.2 ± 3.03 187.9 ± 5.62
Duration of training (years) 7.5 ± 1.5 6.3 ± 1.5
  1. Values represent means ± standard deviations. No statistically significant differences were found for all intergroup comparisons (P > 0.05)